Product Specifications
| Prod Model: |
MRD-BJ-11/48.1 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
Product Description
Neutral Grounding Resistor Advantages
The purpose of resistance grounding is to provide protection of a transformer/generator by solving the problem of transient over-voltages thereby reducing equipment damage. It accomplishes this by allowing the magnitude of fault current to be predetermined by Ohms law I=V/R where I=fault current, V=line to neutral voltage, R= Ohmic value of resistor. In addition, limiting fault current to predetermined maximum values permits the designer to selectively co-ordinate the operation of protective devices, which minimizes system disruption and allows quick location of the fault.
Neutral grounding resistors will save money by reducing magnitude of transient over-voltages, thereby reducing equipment damage, simplifying ground fault location, improving system and equipment fault protection, reducing maintenance time and expense, creating improved safety for personnel, improving lightning protection and reducing fault frequency.
When the neutral of a system is not grounded destructive overvoltages appear from line to ground during normal switching of circuits. It has been shown that these overvoltages cause aging and insulation failure at various locations throughout the system. As a result, a line to ground fault can cause considerable damage, interruption of service and difficulty in fault location.
Advantages of Neutral Grounding Resistors Include:
Reduced overvoltages.
Reduced equipment damage.
Isolation of faulted circuit.
Increased protection of transformers, generators and auxiliary equipment.
Reduced operation/maintenance expense.
Increase safety.
Improved reliability.
Reduced frequency of faults.
Quicker fault location.
Increased lightning protection.
Baoding Mingrui Optoelectronics Technology Co., Ltd. is located in the High and New Technology Industrial Zone. Our company has two business entities (Light Energy Company and Electric Power Company). Light Energy Company is specially engaged in the study of solar power generation and LED lighting. Electric Power Company is a high and new technology enterprise that is engaged in the research, production, sale and service of power system automation equipment. The long-term and close cooperation between our company and Beijing University and University Of North China Electric Power has formed a strong high-tech talent system. Our company also traces national and foreign electric technology development trends, develops new products, and is devoted to power automation product technology to make progresses.
With long-term and close cooperation between our co. And Beijing University and University of North China Electic Power, Mingrui has outstanding technical researching team and superior equipments, specially concentrating on research & development, production, sales and service of neutral grounding series products of power distribution system.
We look forward to being your technical partner in the future for your power equipment.
